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weakness

American  
[week-nis] / ˈwik nɪs /

noun

weaknesses plural
  1. the state or quality of being weak; lack of strength, firmness, vigor, or the like; feebleness.

    Synonyms:
    fragility
    Antonyms:
    strength
  2. an inadequate or defective quality, as in a person's character; slight fault or defect.

    to show great sympathy for human weaknesses.

    Synonyms:
    flaw
  3. a self-indulgent liking or special fondness, as for a particular thing.

    I've always had a weakness for the opera.

    Synonyms:
    appetite, hunger, passion, penchant
  4. an object of special desire; something very difficult to resist.

    Chocolates were her weakness.


weakness British  
/ ˈwiːknɪs /

noun

  1. the state or quality of being weak

  2. a deficiency or failing, as in a person's character

  3. a self-indulgent fondness or liking

    a weakness for chocolates

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

weakness Idioms  

Synonym Usage

See fault.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of weakness

First recorded in 1300–50; Middle English waikenes, weikenes. See weak, -ness

Explanation

The point where something fails to work properly or to hold up is its weakness. If a building crumbles in a storm, it's probably because of a weakness — a flaw or defect — in its structure. Weakness can indicate a physical weakness, like a chair with one wobbly leg, or flaw in an idea, like a plan for a lemonade stand that doesn't include any cups for serving the lemonade. People can show weakness too, when they are helpless to take action. The origin of weakness can be traced all the way back to its Proto-Indo-European root of weik, "to bend."

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Vocabulary lists containing weakness

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Kane's position here makes him a weakness defensively.

From BBC • Jun. 18, 2026

“In setting policy at this meeting, the Committee continued to judge that weakness in demand and the labour market was likely to lessen the strength of second-round effects from higher global energy prices.”

From Barron's • Jun. 17, 2026

BNP Paribas analyst Nick Jones wrote in a Tuesday note that Snap’s pricing strategy for Specs may be contributing to the company’s stock weakness following the release.

From MarketWatch • Jun. 17, 2026

Like Vito Corleone, I have a sentimental weakness for my children and I spoil them.

From Los Angeles Times • Jun. 17, 2026

By that evening, many of the crewmen had begun to suffer from classic symptoms of radiation poisoning: weakness, headaches, fevers, and nausea.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

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